彈簧鋼
彈簧鋼是指製造各種彈簧及其他彈性元件的特殊鋼種。 彈簧主要包括板簧、螺旋彈簧和其他彈性元件。 主要作用是吸收衝擊能量,緩和機械振動和衝擊。
彈簧鋼分為非合金彈簧鋼(即碳素彈簧鋼)和合金彈簧鋼。 合金彈簧鋼:一般含碳0.45%~0.70%和一定量的Si、Mn、Cr、V、W、B等合金元素。鬆弛性能。 碳素彈簧鋼:此鋼含碳0.60%~0.90%,錳0.3%~1.20%,不添加其他合金元素,成本較低。
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Steel Grade | GB | ISO | AISI | JIS | DIN | NF |
20Cr | GB20Cr | 20Cr4 | 5120 | SCr22,SCrl20 | 20Cr4 | - |
30Cr | GB34Cr4 | 34Cr4 | 5130 | SCr2,SCr430 | 34Cr4 | 34Cr4 |
35Cr | GB35Cr | 34Cr4 | 5132 | SCr3,SCr435 | 34Cr4 | 34Cr4 |
40Cr | GB40Cr | 37Cr4 | 5140 | SCr4,SCr440 | 41Cr4 | 41Cr4 |
45Cr | GB45Cr | 41Cr4 | 5145 | SCr5,SCr445 | 41Cr4 | 41Cr4 |
50Cr | GB50Cr | - | 5150 | SCr445 | - | - |
20CrMo | - | 18CrMo4 | - | SCM22.SCM430 | - | 25CrMo4 |
30CrMo | GB30CrMo | 25CrMo4 | 4130 | SCM2,SCM430 | 25CrMo4 | 25CrMo4 |
30CrMoA | GB30CrMoA | 34CrMo4 | 4130 | SCM430 | 34CrMo4 | 34CrMo4 |
35CrMo | GB35CrMo | 34CrMo4 | 4137 | SCM3,SCM435 | 34CrMo4 | 34CrMo4 |
42CrMo | GB42CrMo | 42CrMo4 | 4140 | SCM440 | 42CrMo4 | 42CrMo4 |
Steel Grade | Chemical Composition (%) | |||||||
C | Mn | Si | S | P | Cr | Cu | Ni | |
# 45 | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.30 |
# 50 | 0.47-0.55 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.30 |
# 55 | 0.52-0.60 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.30 |
# 60 | 0.57-0.65 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.30 |
# 70 | 0.67-0.75 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.30 |
65Mn | 0.62-0.70 | 0.90-1.20 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | - | - |
55Si2Mn | 0.52-0.60 | 0.60-0.90 | 1.50-2.00 | ≤0.035 | ≤0.035 | ≤0.35 | - | - |
60Si2Mn | 0.56-0.64 | 0.60-0.90 | 1.50-2.00 | ≤0.035 | ≤0.035 | ≤0.35 | - | - |
60Si2MnA | 0.56-0.64 | 0.60-0.90 | 1.60-2.00 | ≤0.03 | ≤0.03 | ≤0.35 | - | - |
55CrMnA | 0.52-0.60 | 0.65-0.95 | 0.17-0.37 | ≤0.03 | ≤0.03 | 0.65-0.95 | - | - |
60CrMnA | 0.56-0.64 | 0.70-1.00 | 0.17-0.37 | ≤0.03 | ≤0.03 | 0.70-1.00 | - | - |
50CrVA | 0.46-0.54 | 0.50-0.80 | 0.17-0.37 | ≤0.03 | ≤0.03 | 0.80-1.10 | - | - |
60CrMnBA | 0.56-0.64 | 0.70-1.00 | 0.17-0.37 | ≤0.03 | ≤0.03 | 0.70-1.00 | - | - |